EP 0005024 A1 19791031 - Sheet materials.
Title (en)
Sheet materials.
Title (de)
Blattförmige Materialien.
Title (fr)
Matériaux sous forme de feuille.
Publication
Application
Priority
US 89984778 A 19780425
Abstract (en)
A stilt material (21) for preventing accidental rupture of microcapsules (20) coated on to sheet (23) material comprises agglomerates in which mineral particles, e.g. of kaolin, are dispersed in a matrix of coacervated polymer(s), e.g. gelatin and gum arabic. The agglomerates are produced by forming a dispersion of mineral particles in a solution of coacervatable polymer(s) and then bringing about coacervation to cause the polymer(s) to deposit as a matrix about the dispersed mineral particles. The stilt material agglomerates (21) may be used as a constituent of microcapsule coatings (20) on pressure-sensitive copying sheets.
IPC 1-7
IPC 8 full level
B41M 5/132 (2006.01); B41M 5/124 (2006.01)
CPC (source: EP US)
B41M 5/1243 (2013.01 - EP US); Y10S 428/914 (2013.01 - EP US); Y10T 428/24975 (2015.01 - EP US); Y10T 428/254 (2015.01 - EP US); Y10T 428/259 (2015.01 - EP US); Y10T 428/2982 (2015.01 - EP US); Y10T 428/2984 (2015.01 - EP US); Y10T 428/2987 (2015.01 - EP US); Y10T 428/2991 (2015.01 - EP US); Y10T 428/2993 (2015.01 - EP US); Y10T 428/2998 (2015.01 - EP US)
Citation (search report)
- US 4046404 A 19770906 - TREIER GEORGE
- US 3481759 A 19691202 - OSTLIE DEAN A
- US 3930101 A 19751230 - VINCENT DAVID N
- FR 2170687 A5 19730914 - WIGGINS TEAPE RES DEV [GB]
- US 2655453 A 19531013 - SANDBERG ROBERT W
- US 3844816 A 19741029 - VASSILIADES A, et al
- US 3839064 A 19741001 - VINCENT D
- US 3743604 A 19730703 - SCHNORING H, et al
Designated contracting state (EPC)
BE CH DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0005024 A1 19791031; AU 4642579 A 19791101; AU 529298 B2 19830602; CA 1129261 A 19820810; ES 479862 A1 19800201; JP S54143325 A 19791108; US 4211437 A 19800708
DOCDB simple family (application)
EP 79300587 A 19790410; AU 4642579 A 19790424; CA 325607 A 19790417; ES 479862 A 19790424; JP 4990979 A 19790424; US 89984778 A 19780425